ClinicalTrials.gg
RecruitingNCT05999851EDIPEUpdated Jan 22, 2026

Multiparametric Assessment of Maternal Vascular Function in the Prediction of Hypertensive Disorders of Pregnancy

An interventional study of Arterial applanation tonometry and In vivo endothelial glycocalyx measurement in Preeclampsia and Hypertensive Disorder of Pregnancy, sponsored by IRCCS Azienda Ospedaliero-Universitaria di Bologna. Recruiting at 1 site in Italy. Open to female participants aged 18 Years to 65 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2026-01-22.

Sponsored by IRCCS Azienda Ospedaliero-Universitaria di Bologna · Not applicable, Interventional, and Prevention

From the registry’s dates

  • Primary completion was expected by May 2026, 6 months ago, but the record still lists the study as recruiting.
  • Started Sep 2023; still recruiting 3 years 2 months later.
Phase
Not applicable
Study type
Interventional
Enrollment
400
Allocation
Not applicable
Ages
18 Years to 65 Years
Sex
Female
01

Where this study stands

Counted across the records on this site · 2026-11-12

Among 16 studies in Pre-Eclampsia with a site in Italy — 9 open to participants now, 10 under way, none of them phase 3. Pre-Eclampsia · Italy.

Started
2023
with 3 others
No phase
4 of 16
2 open now
Registered
8th of 16
by date
Lead sponsor
1 of 16
IRCCS Azienda Ospedaliero-Universitaria di Bologna

Among the 16 studies in Pre-Eclampsia with a site in Italy, this one is one of 4 that started in 2023, is one of 4 with no phase, and was the 8th registered.

Pre-Eclampsia

916 studies on the registry are indexed under Pre-Eclampsia; 243 are open to participants now.

Browse Pre-Eclampsia studies →

Open to participants now

9 of the 16 studies in Pre-Eclampsia with a site in Italy are open now. Recruiting first, the newest first:

3 more — sign in →

All 9 open studies →

A study can be open while its sites in Italy have not opened yet or have stopped. Only those recruiting at a site in Italy →

Who these studies take

Of the 162 Pre-Eclampsia studies recruiting now, 81 (50%) set no upper age limit and 80 (49%) stop at 75 or younger; 18 take children under 18; 60 take healthy volunteers.

This study: 18 Years to 65 Years · female · healthy volunteers too.

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02

Study summary

The present study is a single-centre prospective study that will enrol pregnant women during their first trimester of pregnancy (11+0 - 13+6 weeks of gestation).

During pregnancy, women will undergo standard clinical evaluation and management. During the two study visits (enrollment and 24+0 - 27+6 weeks of gestation) the investigators will perform arterial tonometry (Pulsepen) and in vivo darkfield microscopy (Glycocheck) to evaluate endothelial and vascular function. A urine sample and a blood sample for specific study analyses on metabolic profile, endothelial and angiogenic markers will be collected. Pregnancy outcomes will be collected at delivery and five years after delivery all the participants will be interview to collect long-term cardiovascular outcomes. Serum endothelial and angiogenic markers will be evaluated only in participants who will develop hypertensive disorders of pregnancy and in an equal number of controls matched for age and body mass index at the time of conception.

Read the detailed description

Primary aim:

To determine the role of the combination of arterial tonometry and endothelial glycocalyx measurement in predicting the risk of developing hypertensive disorders in pregnancy.

Secondary aims:

  • To determine the association between circulating markers of angiogenesis and endothelial dysfunction (ANG-1, ANG-2, ET-1, ICAM-1 and VCAM-1) and the development of hypertensive disorders of pregnancy.
  • To define the trends of serum uric acid, lipids and xanthine oxidase activity in normotensive and hypertensive pregnancies.
  • To determine the ability of the combination of arterial tonometry and endothelial glycocalyx measurement, performed in the two study visits during pregnancy, in predicting the risk of long-term maternal cardiovascular disease.
03

Conditions studied

  • Preeclampsia
  • Hypertensive Disorder of Pregnancy

Keywords

  • Preeclampsia
  • Hypertensive Disorders of Pregnancy
  • Hypertension
  • Obstetric Medicine
  • Cardio-Obstetrics
  • Cardiovascular outcomes
  • Pregnancy complications
  • Arterial Stiffness
  • Endothelial Glycocalyx
  • Endothelial dysfunction
  • Uric Acid
  • Oxidative stress
  • Xanthine oxidase
  • Lipids
04

Who can participate

Ages eligible
18 Years to 65 Years
Sexes eligible
Female
Accepts healthy volunteers
Yes

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Age greater than or equal to 18 years
  • Single pregnancy
  • No previous pregnancies lasting more than 12 weeks
  • Participant willing and able to give for participation in the study

Exclusion criteria

Exclusion Criteria:

  • Intermediate-high risk of genetic abnormalities and/or need to perform invasive tests (amniocentesis, villocentesis)
  • History of solid organ or hematopoietic stem cell transplantation
  • Chronic renal failure (≤45ml/min/1.73m2)
  • Chronic treatment with antihypertensive drugs and/or xanthine oxidase (XO) inhibitors
Terms in these criteria, in plain language(2)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

GFR and eGFR (kidney filtering)

GFR (glomerular filtration rate) is how much blood the kidneys filter each minute. It is usually estimated from a blood test — eGFR, by formulas such as CKD-EPI or MDRD — and some studies ask for it to be measured directly instead. Usually given in mL/min/1.73 m².

Check the method, the units and the minimum the study states. A value of 90 or above is in the normal-or-high range, but kidney damage can show in other tests too.

05

Study design

Phase
Not applicable
Primary purpose
Prevention
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
400 participants (estimated)

Study arms

  • Experimental
    Principal arm

    The entire cohort of participants will undergo all experimental procedures. Participants who will develop hypertensive disorders of pregnancy and matched participants with healthy pregnancies will also undergo serum endothelial and angiogenic markers assessment.

    Device: Arterial applanation tonometry · Device: In vivo endothelial glycocalyx measurement · Diagnostic Test: Serum markers of angiogenesis and endothelial dysfunction · Diagnostic Test: Blood chemistry test · Diagnostic Test: Serum xanthine oxidase activity

Interventions

  • DeviceArterial applanation tonometry

    Arterial applanation tonometry will be performed at the carotid and femoral level by the PulsePen device (Software WPulsePen version 2.3.1, DiaTecne, Milan, Italy), while the subject is lying in the horizontal position and after 5 minutes of rest.

    Also known as: PulsePen, Arterial stiffness measurement, Pulse wave velocity assessment

  • DeviceIn vivo endothelial glycocalyx measurement

    The in vivo microscopy (GlycoCheck system) is performed in the sublingual capillaries during the morning, with the participant sitting on a chair. The sublingual capillaries are visualized using an SDF video microscope (Capiscope handheld, KK Research technology Ltd).

    Also known as: Glycocheck, Sidestream dark field microscopy

  • Diagnostic testSerum markers of angiogenesis and endothelial dysfunction

    ELISA assays to measure serum circulating markers of angiogenesis and endothelial dysfunction (ANG-1, ANG-2, ET-1, ICAM-1 and VCAM-1).

    Also known as: ANG-1, ET-1, ICAM-1, VCAM-1, ANG-2

  • Diagnostic testBlood chemistry test

    Immunochemistry analysis of serum levels of uric acid, total cholesterol, LDL-cholesterol, HDL-cholesterol, Triglycerides, Lipoprotein (a)

  • Diagnostic testSerum xanthine oxidase activity

    Serum xanthine oxidase (XO) activity will be assessed in blood samples measuring the ability of XO to produce uric acid

06

What researchers measure

Primary outcomes

  1. Perfused Boundary Region (PBR)

    Micron

    Time frame: Baseline visit (11/13+6 weeks of pregnancy)

  2. Perfused Boundary Region (PBR)

    Micron

    Time frame: Follow-up visit (24/27+6 weeks of pregnancy)

  3. Carotid-femoral pulse wave velocity (cf-PWV)

    m/s

    Time frame: Baseline visit (11/13+6 weeks of pregnancy)

  4. Carotid-femoral pulse wave velocity (cf-PWV)

    m/s

    Time frame: Follow-up visit (24/27+6 weeks of pregnancy)

  5. Number of participants with hypertensive disorders of pregnancy

    Number of participants diagnosed during pregnancy with any hypertensive disorder of pregnancy

    Time frame: From date of enrolment until the date of first documented diagnosis of hypertensive disorder of pregnancy, according to the International Society for the Study of Hypertension in Pregnancy Criteria, assessed up to one week after delivery

  6. Number of participants with preeclampsia

    Number of participants diagnosed during pregnancy with preeclampsia according to the International Society for the Study of Hypertension in Pregnancy (ISSHP) criteria.

    Time frame: From date of enrolment until the date of first documented diagnosis of preeclampsia, according to the International Society for the Study of Hypertension in Pregnancy Criteria, assessed up to one week after delivery

Secondary outcomes

  1. Serum Angiopoietin 1 (ANG-1)

    ng/ml

    Time frame: Baseline visit (11/13+6 weeks of pregnancy)

  2. Serum Angiopoietin 1 (ANG-1)

    ng/ml

    Time frame: Follow-up visit (24/27+6 weeks of pregnancy)

  3. Serum Angiopoietin 2 (ANG-2)

    ng/ml

    Time frame: Baseline visit (11/13+6 weeks of pregnancy)

  4. Serum Angiopoietin 2 (ANG-2)

    ng/ml

    Time frame: Follow-up visit (24/27+6 weeks of pregnancy)

  5. Serum Endothelin-1 (ET-1)

    Serum concentration assessed by ELISA (pg/ml)

    Time frame: Baseline visit (11/13+6 weeks of pregnancy)

  6. Serum Endothelin-1 (ET-1)

    pg/ml

    Time frame: Follow-up visit (24/27+6 weeks of pregnancy)

  7. Serum Intercellular adhesion molecule-1 (ICAM-1)

    ng/ml

    Time frame: Baseline visit (11/13+6 weeks of pregnancy)

  8. Serum Intercellular adhesion molecule-1 (ICAM-1)

    ng/ml

    Time frame: Follow-up visit (24/27+6 weeks of pregnancy)

  9. Serum Vascular Cell Adhesion Molecule-1 (VCAM-1)

    ng/ml

    Time frame: Baseline visit (11/13+6 weeks of pregnancy)

  10. Serum Vascular Cell Adhesion Molecule-1 (VCAM-1)

    ng/ml

    Time frame: Follow-up visit (24/27+6 weeks of pregnancy)

  11. Number of participants with long-term cardiovascular outcomes

    Number of participants diagnosed with stroke, myocardial infarction, heart failure or hospitalized for cardiovascular disease in the 5 years after delivery

    Time frame: Interview 5 years after delivery

Other outcomes

  1. Serum uric acid

    mg/dl

    Time frame: Baseline visit (11/13+6 weeks of pregnancy)

  2. Serum uric acid

    mg/dl

    Time frame: Follow-up visit (24/27+6 weeks of pregnancy)

  3. Serum lipid profile

    HDL-cholesterol (mg/dl), LDL-cholesterol (mg/dl), Triglycerides (mg/dl), Lipoprotein (a) (mg/dl)

    Time frame: Baseline visit (11/13+6 weeks of pregnancy)

  4. Serum lipid profile

    HDL-cholesterol (mg/dl), LDL-cholesterol (mg/dl), Triglycerides (mg/dl), Lipoprotein (a) (mg/dl)

    Time frame: Follow-up visit (24/27+6 weeks of pregnancy)

  5. Xanthine Oxidase Activity

    mU/mL

    Time frame: Baseline visit (11/13+6 weeks of pregnancy)

  6. Xanthine Oxidase Activity

    mU/mL

    Time frame: Follow-up visit (24/27+6 weeks of pregnancy)

07

Study locations

1 of 1 sites recruiting
08

References and documents

Individual participant data

Plan to share: Yes — All de-identified IPD that underlie results in a publication for all primary and secondary outcome measures will be shared.

Supporting information: Study protocol, Statistical analysis plan

Time frame: Data will be available after the associated manuscript will be published. No ad-interim analysis is planned before enrollment conclusion.

Access criteria: Access to IPD can be requested by qualified researchers engaging in independent scientific research, and provided after review and approval of a research proposal and execution of a Data Sharing Agreement (DSA).

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Started Sep 2023 (actual). Primary completion is estimated for May 2026, 32 months after the start.

Of 171 non-industry interventional studies with no phase under Pre-Eclampsia, half reached primary completion within 24 months of starting (the median), counting those still running; a quarter within 9 and three quarters within 43. This study's planned 32 months is above that.

Counting every sponsor, half of 176 studies reached it within 24 months; a quarter within 9 and three quarters within 43.

How these figures are worked out, and which studies are left out of them.

Registered
Jun 15, 2023
First posted
Aug 21, 2023
StartActual
Sep 1, 2023
Primary completionEst.
May 2026
CompletionEst.
Sep 2031
Last update
Jan 22, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Jan 22, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT05999851
Responsible party
Sponsor
First posted
Aug 21, 2023
Start date
Sep 1, 2023
Primary completion
May 2026 (estimated)
Completion
Sep 2031 (estimated)
Last update
Jan 22, 2026

Study contacts

Arrigo Francesco Giuseppe Cicero, MD, PhD
Contact
arrigo.cicero@unibo.it
+39 051 214290
Cristina Scollo, BD
Contact
cristina.scollo@aosp.bo.it
Arrigo Francesco Giuseppe Cicero, MD, PhD
principal investigator · IRCCS University Hospital of Bologna, Italy. University of Bologna, Italy.

Oversight

FDA-regulated drug
No
FDA-regulated device
Yes
View the source record on ClinicalTrials.gov ↗

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